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Dormant Neutron Star Emits Unusually Polarised Light

Astrophysicists Detect Black Holes and Neutron Stars Merging, This Time for Certain

Astrophysicists Detect Black Holes and Neutron Stars Merging, This Time for Certain The massive collisions occurred a billion years ago, sending out ripples in spacetime that eventually reached Earth. Illustration: Carl Knox, OzGrav/Swinburne A large collaboration of astrophysicists report they have made the first-ever confirmed detections of shockwaves produced by mergers between neutron stars and black holes. The detections, 10 days apart, represent two of these enormous cosmic unions. Advertisement In January 2020, Earth quivered ever so slightly as shockwaves imperceptible to human senses passed through it. Those ripples were gravitational waves, perturbations in spacetime generated by all massive objects but only detectable from extremely huge events, like two black holes colliding. The waves were strong enough to be picked up by the Laser Interferometer Gravitational-Wave Observatory in Louisiana (the Washington branch of the instrument was offline at the time) and the si

For the first time, scientists 'see' black holes swallowing neutron stars

Text Size: A+ New Delhi: In a first, an international team of scientists, including researchers from India, have confirmed the detection of a collision between a black hole and a neutron star, by analysing the gravitational waves created by two such events in January last year. Gravitational waves are ripples in the space-time fabric created by extreme events, such as the collision of two blackholes or two neutron stars. While gravitational waves from several such collisions have been detected since the first discovery in 2015, they have all been a result of collision between similar cosmic bodies. However, now the team has determined that these waves detected last January were a result of a neutron star being swallowed whole by its black hole partner.

Astronomers detect black holes swallowing up neutron stars for the first time

Astronomers detect black holes swallowing up neutron stars for the first time CNET 2 hrs ago © Carl Knox, OzGrav/Swinburne Astronomers have detected two neutron star-black hole mergers via gravitational waves the first time such a discovery has been made. On Jan. 5, 2020, astrophysicists heard a chirp from a distant part of the cosmos, some 900 million light-years away. The fleeting sound was unlike any they d heard before and was caused by a great ripple in space-time a gravitational wave that spread out across the universe from over 900 million light-years away, washing over the Earth and pinging detectors. Chirp.  Then, 10 days later, they heard another, similar sound. A cosmic twin. Gravitational waves had once again pinged Earth s detectors. 

Gravity waves show black hole-neutron star mergers – Astronomy Now